Doepfer

Hi James,

 

Nice idea re: power cables.

 

As for making your own header/jumper cables, the Doepfer documentation talks
explicitly about linking TWO busses together.

 

If L=Lower, M=Middle and U=Upper and assuming A-190 is mounted on the Middle
bus,  then something tells me that you could get away with M->U and M->L by
fabricating a Y-cable.

 

Permutations such as M->U->L or M->L-U would probably be OK too with the
appropriate cabling.

 

I rather think that any kind of loop: M->U->L->M should be avoided.

 

Kind regards,

 

Nick

 

  _____  

From: Doepfer_a100@yahoogroups.com [mailto:Doepfer_a100@yahoogroups.com] On
Behalf Of James Husted
Sent: 17 November 2013 18:22
To: Doepfer_a100@yahoogroups.com
Subject: Re: [Doepfer_a100] Can I connect all 3 BUS boards in a P9 case ?

 

  

The busses can be connected, there is no electrical reason why not. The main
thing to avoid is plugging more than one gate or CV SOURCE into the bus. If
you don't have the special little header/jumper cables to connect them then
the other easy way is to just cross connect two unused 16-pin headers with a
spare power cable. MAKE SURE TO HAVE CORRECT POLARITY before you turn on the
juice of course. 

 

It is fairly easy to make one of those header/jumper cables. Just look for
some of those two position shunts used on older computer hard drives etc.
Many of them have access to the metal connection inside (a notch on the top
to connect test probes etc) and all you have to do is solder a wire there
and make your own. 

 

James Husted

Designer, Synthwerks LLC
www.synthwerks.com
james@synthwerks.com
synthwerks@me.com

 

On Nov 17, 2013, at 8:50 AM, nicholas.buckley@ntlworld.com wrote:







Hi everyone,

I understand that, using the special cable ( A-100 BC ? ), you can connect
TWO bus boards together. Without using e.g. A-185, is it possible to connect
ALL THREE BUS boards within a single P9, such that the CV / Gate control
from my A-190-2 will be available across the entire system?

I think it's most likely that my A-110's and A-140's will occupy the lower
and middle BUSses, but should I wish to expand onto the upper BUS, is there
a way to get the CV / Gate control onto the upper BUS?

Or, I suppose, turning the question on it's head, is it always a good idea
to limit BUS-aware modules to a single BUS, with a link to a second BUS
being the clear exception rather than the rule.

Either way, is there a practical ( safe ? ) limit to the number of modules
that can be 'driven' by the A-190-2 ?

Best wishes,

Nick,
Cardiff, UK.